Steelray Project Exporter for UN/CEFACT XML is a free add-in to Microsoft Project which exports Microsoft Project schedules to the first generation IPMR Format 6 -- an XML file containing the IMS (Integrated Master Schedule).
Exporter for UN/CEFACT XMLSteelray Project Exporter for IPMDAR is a commercial product. It is an add-in to Microsoft Project which exports Microsoft Project schedules to IPMDAR -- a JSON file containing the IMS (Integrated Master Schedule).
Exporter for IPMDAR (JSON)